Datasheet

Operation descriptions VIPER17
20/32 DocID14419 Rev 9
Figure 26. OVP timing diagram
7.9 About CONT pin
Referring to the Figure 27, through the CONT pin, the below features can be implemented:
1. Current Limit set point
2. Over voltage protection on the converter output voltage
The Table 10 on page 21 referring to the Figure 27, lists the external components needed to
activate one or plus of the CONT pin functions.
Figure 27. CONT pin configuration
t
V
AUX
t
t
t
STROBE
t
COUNTER
RESET
t
COUNTER
STATUS
t
0
V
CONT
2 µs
0.5 µs
OVP
FAULT
0 0 0
0
→
11
→
22
→
0
0
→
11
→
22
→
3 3
→
4
0
ERULIAF POOL KCABDEEFECNABRUTSID YRAROPMETNOITAREPO LAMRON
t
V
OVP
t
t
t
STROBE
t
COUNTER
RESET
t
COUNTER
STATUS
t
0
2 µs
0.5 µs
OVP
FAULT
0 0 0
0
→
11
→
22
→
0
0
→
11
→
22
→
3 3
→
4
0
ERULIAF POOL KCABDEEFECNABRUTSID YRAROPMETNOITAREPO LAMRON
t
+
-
OVP
R
OV P
SOFT
START
CONT
Daux
R
LIM
From R
SENSE
Auxiliary
winding
to GATE driver
OVP
LOGIC
OCP
BLOCK
OCP